class Category(models.Model):
    username = models.CharField(max_length=15)
    realname = models.CharField(max_length=20)
    tweets = models.CharField(max_length=1000)
    tweettime = models.DateTimeField(max_length=30)
    tweetidnum = models.CharField(max_length=30)
    userphoto = models.CharField(max_length=100)

File "/Users/xxxxxxxxx/anaconda/envs/tg/lib/python3.4/site-packages/django/db/backends/sqlite3/base.py", line 485, in execute
    return Database.Cursor.execute(self, query, params)
       django.db.utils.OperationalError: table categories_category has no column named userphoto